The invention relates to a system and method for cooling mash in the flow of alcohol fluidification, saccharification, yeasting and fermenting, and its main technical characters: the outlet pipline of a mash storage tank is connected with a mash inlet pipeline at the top end of a vertical shell and tube heat exchanger, the mash outlet pipeline at the bottom end of the vertical shell and tube exchanger is connected with the mash storage tank, the cooling water inlet of the vertical shell and tube heat exchanger is arranged at the lower part and the cooling water outlet arranged at the upper part. And it can implement the mash runs smoothly in the whole flow and has no dead angle during running, never blocking, having characters of good heat exchange effect, high thermal efficiency, high efficiency, saving water, etc, and developing a new field of mash heat exchange technology. |